Coal cutting machine



BEST AVAILABLE COPY June 20, 1 F. JOY

COAL CUTTING MACHINE Filed Deo. 2, 1953 25 Sheets-Sheet l MM, NN

Nh. 22mm @n MN mwN www wwwmwmm. LRN @N mv EN h `lune 20, 1939.

BEST AVAILABLE COPY J. F. JOY 2,163,341

COAL CUTTING MACHINE 23 Sheets-Sheet 2 Filed Dec. 2, 1955 ml" ml T l, I in.

INVENTOR.

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ATTORNEY.

BEST AVAILABLE com June 20, 1939. 1 F JQY` 2,163,341

COAL CUTTING MACHINE Filed Deo. 2, 1933 23 Sheets-Sheet .'5

ATTORNEYS.

BEST AVAILABLE COFl june 20, 1939. J. F. JOY

COAL CUTTING MACHINE Filed Dec. 2, 1935 23 Sheets-Sheet 4 @I vm, 06N www, Num, s l mh, hm n \\NM\ uw* Q QMYLTHI WIHII H O QRM -V o o o MGM, Rm

ATTORNEYS.

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BEST AvAxLABLE COPY J. F. JOY

June 20, -1939.

COAL CUTTING MACHINE Filed Dec. 2, 1953 25 She'eLs-Sheerl 5 ATTORNEYS.

BEST AvAlLABLE COPY June 20, 1939. L F, JOY

COAL CUTTING MACHINE Filed Deo. 2, 1933 23 Sheets-Sheet 6 INVENTOR.

ATTORNEYS BEST AvAnLABLE COPY June 20, 1939. f .1, F. JOY 2,163,341

COAL CUTTING MACHINE Filed Dec. 2, 1933 23 Sheets-Sheet '7 INVENTOR.

ATTORN E YJ BEST AvAaLABLE coml June20, 1939. A 1 F. JQY 2,163,341

GOAL CUTTING MACHINE I Filed DGO, 2, 1933 25 Sheets-Sheet 8 34 b -Fli/ ZP 5 32 Em/@ Fm/i INVENTOR.

ATTORNEYS BEST AVAILABLE COP June 2f), 1939. v i:- JOY 2,163,341

COAL CUTTING MACHINE Filed Dec. 2, 1935 23 Sheets-Sheet 9 ATTORNEYS BEST AVAiLABLE COF-Wy J le 2Q, 1i939. J. F. JOY 2,163,341

l COAL CUTTING MACHINE Filed Deo. 2, 1955 25 Sheets-Sheet 10 INVENTOR ATTORNEYS` www BQ m A @www @l BEST AvAxLABLE COPY June 20, 1939. .J. F. JOY

COAL CUTTING MACHINE Filed DeC. 2, 1953 23 Sheets-Sheet ll INVENTOR.

ATTORNEYS.

Tikal BEST AVAILABLE coml June 2), 1939. J. F. JOY 2,163,341

GOAL CUTTING MACHINE Filed Dec. 2, 1935 25 Sheets-Sheet 12 283 INVENTOR.

ATTORNEY.

BEST AVAILABLE COP June 2G, 1939. 1, F JOY v 2,163,341

COAL CUTTING MACH-INE Filed DeG. 2, 1935 25 Sheets-Sheet l5 'INVENTOR @+f- ATTORNEYS BEST AVAILABLE COPN June 20, 1939. J. F. JOY 2,163,341

GOAL CUTTING MACHINE Filed Deo. 2, 1953 25 sheets-sheet 14 ,(DR.. @iQ/7.

ATTORNEYS BEST AVAILABLE COPY K June 2o, 1939. J. F JOY 2,163,341n

COAL GUTT ING MACHINE Filed Dec. 2, 1953 23 Sheets-Sheet l5 34% x Ill n lL am QSZW 348 2 34 l Y .IIJ YY1 1,, f? ,g 57 0 mi H Z M ggl 354 jL l *'"Q l 1 k l, `O :5, 354

INVENTOR.

ATTORNEY5 BEST AVAILABLE COPY J. F. JOY

June 2Q, 1939.

COAL CUTTING MACHINE Filed Deo. 2, 1935 23 Sheets-Sheet 16 muv.

Il II ll Il Il Il ww -MEI INV'OR. I my /c/ ATTORNEY.

BEST AVAILABLE com June 20, 1939. J. F. JOY

COAL CUTTING MACHINE Filed DeC.'2, 1953 25 Sheets-Sheet l'7 INVENTOR.

ATTORNEY.

BEST AVAILABLE COPY June 20, 1939. J. F. JOY 2,163,341

COAL CUTTING MACHINE Filed Dec. 2, 1935 25 sheets-sheet 18 JEL BEST AVAILABLE com June 20, 1939, J. F. JOY

COAL CUTTING MACHINE O/OQOOQO INVENTOR.

ATTORNEY.

5 4 E. 7 I A w B 4 8 my w@ w 4 .A4 :maw HMHHUNWMMMMHMHMl@wim .4+ o 8 N O A O 9 OEM o 0 -IQUA BEST AVAILABLE COPY June 20, 1939. J, F, JOY' 2,163,341

COAL CUTTING MACHINE Filed Dec. 2, 1935 23 Sheets-Sheet 2O INVEN TOR.

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